easy5 pts · first answer countshash-mapjavascript
When to choose Map over a plain object
You need to attach extra data to DOM elements or user objects, using the objects themselves as keys. Which structure fits?
Discussion 0
Join free to post in the discussion.
Related questions
- fetch treats a 404 as successBackend Developer
- slice vs spliceBackend Developer
- indexOf and NaNBackend Developer
- new Array(3) then mapBackend Developer
- Value missing from indexOfBackend Developer
- parseInt on a CSS valueBackend Developer
- Number of an empty form fieldBackend Developer
- Checking whether a value is an arrayBackend Developer